Dell Command Line Reference Guide for the S4048–ON System 9.14.2.4

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ip dhcp relay

Enable Option 82.

Syntax
ip dhcp relay information-option [trust-downstream | vrf]
Parameters
trust-downstream
Configure the system to trust Option 82 when it is received from the previous-hop router.
vrf
Enter the keyword vrf to include VRF related information in the Option 82. This configuration enables the relay agent to include VRF related information when it forwards the broadcasts from client to DHCP server.
Defaults
Disabled.
Command Modes
CONFIGURATION
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100-ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100-ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.7(0.0)
Introduced on the S6000–ON.
9.4.(0.0)
Added support for VRF.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.7.0
Introduced on the S4810.
7.8.1.0
Introduced on the C-Series and S-Series.

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